[gmx-users] problem installing plumed-2.3.2

[spss4 at iacs.res.in]

Hii all
   I am trying to install plumed-2.3.2 in CRAY system. I am using this
command to configure plumed
 ./configure --enable-mpi --prefix=/work/plumed-2.2.5/
At the end it shows a warning 

  configure: WARNING: **** PLUMED will NOT be compiled using MPI because MPI
have not been found!
configure: creating ./config.status    config.status: creating
Makefile.conf
   config.status: creating sourceme.sh
   config.status: creating stamp-h
    
How to solve this problem? I want to use it with MPI support. 
Thank you..